Minolta Di 620 Manual page 48

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The gradation curve of the density-corrected data is adjusted in accordance
with the Image Quality mode so as to enhance the reproduction of the high-
density areas.
The above processing helps retain density detail within characters and other
high-density areas, while removing the fogging component from the low-den-
sity areas.
The following block diagram illustrates the operation of auto-density (AE)
control.
Sampling
Reflectivity/Density
IR Density Correction block
¿
CCD (ODD/EVEN)
Analog Processing block (PWB-IA)
White Level
Correction
Converter
Memory
M-29
PWB-IB
Histogram
Processing block
CPU
1155M104CB

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